- In Rashi’s view, the verse uses the term niz’charim (“remembered”) because Purim is remembered with the public reading of Megillas Esther on Puirm. The Talmud (Megilla 18a) stresses that one cannot merely memorize the story, but must read it from a scroll. This idea comes from a gzeira shava1: just as regarding Amalek the Torah (Shemos 17:14) uses the “zichron” (remembering) in reference to writing about those events “in a book,” so too, these events must be read from a book. Elsewhere, the Talmud (Yerushalmi Megilla 2:3) similarly writes that this verse justifies the sages’ writing of the tractate, Megilla.
- Based on this, the Brisker Rav wonders why there was a need for Mordechai’s court to authorize the requirement for Megillas Esther to be included in TaNaCh. This verse should have sufficed! His son, HaGriD, answers that this is because there are no halachos learned directly from NaCh. This is similar to Tosfos’ opinion (Megilla 5a) regarding learning the laws of fast days from a verse in Yirmiya.
- R’ Yechezkiel Abramsky notes that without the Oral Torah, we would not remember (nor, obviously, celebrate) the Purim story.
1a A hermeneutical rule in which a lesson is learned from an oral tradition of an analogy. See the Braisa of Rebbe Yishmael in the introduction to Sifra.